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Base64 is a binary to a text encoding scheme that represents binary data in an American Standard Code for Information Interchange (ASCII) string format. Its designed to carry data stored in binary format across the channels, and it takes any form of data and transforms it into a long string of plain text.
How to encode and decode?
In computers, encoding is the process of putting a sequence of characters (letters, numbers, punctuation, and certain symbols) into a specialized format for efficient transmission or storage. Decoding is the opposite process -- the conversion of an encoded format back into the original sequence of characters.
What does the Base64 command do?
The base64 command encodes binary strings into text representations using the base64 encoding format. Base64 encoding is often used in LDIF files to represent non-ASCII character strings. It is also frequently used to encode certificate contents or the output of message digests such as MD5 or SHA.
How do you decode Base64 on a Mac?
Open the Terminal app. Type base64 -D and hit enter. This puts Terminal into decode mode. Now paste or type your Base64 encoded string after the command and hit enter again.
What is the function of BASE64DECODE?
BASE64DECODE is a function that manipulates CHARACTER strings that are base64-encoded, and returns a BLOB string that contains the base64-decoded version of the source string.
The base64-decoding function is a homomorphism between modulo 4 and modulo 3-length segmented strings. That motivates a divide and conquer approach: Split the encoded string into substrings counting modulo 4 chars, then decode each substring and concatenate all of them.
Can Base64 be decoded?
Base64 is an encoding scheme, not an encryption method. It is designed for data representation and transmission, not for data security. Base64 encoded data can be easily decoded, so it should not be used to protect sensitive information. For secure data transmission, proper encryption methods should be used.
Why do hackers use Base64?
The Deception of Base64 Encoding Malware evades filters looking for malicious binaries by encoding executable files as benign text. The target browser can decode the script and assemble the payload on the host. Base64 encoding enables powerful attacks even when using common images.
Related links
DECOD: fast and accurate discriminative DNA motif finding
by P Huggins 2011 Cited by 67 DECOD outperforms previous methods both in speed and in accuracy when using simulated and real biological benchmark data.
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